LEHTINEN, M. Remarks on the maximal dilatation of the Beurling-Ahlfors extension. Annales Fennici Mathematici, [S. l.], v. 9, n. 1, p. 133–139, 1984. DOI: 10.5186/aasfm.1984.0910. Disponível em: https://afm.journal.fi/article/view/134491. Acesso em: 25 nov. 2024.